XO 1.5 B2

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XO-1.5 Laptop Beta test model 2 (B-Test 2), also known as B2.

Description

The B2 prototypes are complete systems, externally appearing very similar to production XO-1s (CL1A). OLPC should receive a couple hundred of these in September, 2009.

Identification

• Hopefully identical to a production XO-1 with the single touchpad (CL1A), but with:
  • green power and screen rotate buttons
  • green battery release buttons
• The motherboard has a daughtercard for the WLAN.
• The motherboard has an internal SD slot

Photographs:

Documentation

Supporting documentation for these boards are (in PDF):

• Pinouts
• Connector Locations (wrong. Hasn't been updated yet!)
• Connector Locations (wrong. Hasn't been updated yet!)
• GPIO Mappings
• EC Pinout
• EC Power On Sequence
• Power Distribution Diagram

Followed by

• C1

Preceded by

• B1